Machine-guard.



L. S. MIGLIORE.

MACHINE GUARD.

APPLICATION FILED NOV. 8. 19!!!- 2 SHEETS-SHEET 1- L. s. MIGLIORE.

MACHINE GUARD.

APPLICATION FILED NOV. 8. 1918.

Pziten ted Apr. 29,1919.

2 SHEETS-SHEET 2- A TTOHIIIEYS @FIQE.

LOUIS STANLEY MIG-LIORE, 0F PHILADELPHIA, PENNSYLVANIA.

MACHINE-GUARD.

Specification of Letters Patent.

Patented Apr. 29, 1919.

Application filed November 8, 1918. Serial No. 261,671.

To all whom it may concern:

Be it known that I, LOUIS STANLEY MIGLIORE, a subject of the King of Italy, having resided in the United States one year last past and having declared my intention of becoming a citizen thereof, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Machine-Guard, of which the following is a specification.

My invention relates to that class of guards or casings for inclosing machinery of the class, for instance, of power-operated sewing machines, which are mounted upon tables and driven by gearing supported beneath the surface of the table,and its object is more particularly to provide a guard for the transmitting mechanism which shall serve as a protective casing for said mechanism and be so disposed relatively to the carrying table as not only to be elevated from the floor but to be readily adjustable and adapted for the operator to have access to the belting and the transmission mechanism and also to prevent any splashing of the lubricant.

With the foregoing principal objects in View, my invention comprehends a guard of a' special construction so disposed as to be at a considerable distance above the fioor,as to confine the transmission mechanism, and as, at the same time, to be adapted to be swung clear of the mechanism to permit of access to it.

The special features which my guard as a concrete device comprises, are illustrated in the drawings and hereinafter described,- the particular features which I claim as novel being especially referred to in the claims.

I do not, however, confine my invention except as required by the state of the art, to more details, but desire it to be understood that the elemental members which my device includes are to be broadly construed.

For the purpose of illustrating my inven In the drawings Figure 1 represents a front elevation of a power-operated sewing machine of a wellknown type, in connection with which my invention is embodied.

Fig. 2 represents a transverse, side sec tional elevation on the dotted line 22 of said Fig. 1.

Fig. 3 represents a plan of a member of my guard removed from the machine.

Fig. 4 represents in perspective one of the hanggrs which I employ to support my guar Fig. 5 represents in perspective the casing, as I term it, which is one of the component elements of my guard considered as an entirety, shown as removed from the machine.

Fig. 6 represents in perspective a hinged lid which is another of the component elements of my guard, and which operates in connection with the casing of Fig. 5,it being also shown removed.

Fig. 7 represents a perspective view of my shaft guard removed from the machine.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings,-

1 designates a supporting table of a type generally used in, for instance, sewing rooms of clothing establishments. This table is formed with a longitudinally extending central trough 3, the base of which is designated 4. The table is supported upon legs 2, and

may, of course, be of any desired length.

Upon the table top are mounted typical sewing machines 5 and 6. r

7 designates a line shaft supported in bearings 18-mounted upon the legs 2, beneath the table 1, upon which are mounted the drive pulleys 8, belts 9 from which eX- tend todriven pulleys 10 on transmission shafts 11 supported in hangers 11 depending from the table top. 12 designates belts from the driven pulleys 10 to the driven wheels 13 of the sewing machines.

14 designates transmissions, which are clutch gears of any well known type, and which are thrown into and out of action by transmission bars 15 operated by treadle pitmen 16 themselves operated by treadles 17.

Beneath and inclosing the pulleys, belts and transmissions, in the typical two-machine illustrated, are mounted and supported the guard device in which my invention resides; and in Figs. 3 to 7 inclusive, I have illustrated the particular elements of which they are composed and which are shown in Figs. 1 and 2 as applied to the table of the sewing machines.

Generally explained, my guard is composed of two principal elements or components one of which, for clearer explanation, I call the casing and the other the lid, and in connection with these two elements, I resort to a third which I have called a shaft guard. All of these guard elements ae supported beneath the table, and particularly beneath the trough of the particular table illustrated, by hangers of special construction to which both the casing and the lid are hinged, and which also support the shaft guard element.

19 designates the foregoing hangers, two of which are employed to support each of the casings and lids, and which also, between two of them, support the shaft guard.

As each guard as a concrete construction is the same as every other one, and as the number which are used depends upon the number of machines to be operated and transmission gears, belts and pulleys to be protected, I will describe but one guard.

In Fig. 4 a hanger 19 is shown as formed of a plate of sheet metal having an inturned or right-angularly bent top 19*, which in application is screwed or otherwise fastened to the base 4 of the trough 3. At its lower end the hanger is provided with apertures 45 and 46 into which are entered the ends of hinge pintles 30 and 41, hereinafter referred to. Preferably midway of its length, the hanger 19 is formed with a circular aperture 2O from which extends a horizontal flange 20, brazed, threaded or otherwise secured to. the inner periphery of said aperture, the purpose of which flange is to support an end of the shaft guard 47.

Referring now to Figs. 3 and 5, which illustrate the casing member of my guard considered as an entirety,this casing is composed of a curved underneath face 21 and of two side faces, one of which 22 I call the outer face, andthe other of which 25 I call the inner face. Both 22 and 25 are side plates of the curved face 21, and conveniently connected with said face by being riveted to an inturned side edge of it 21 and an inturned bottom edge of it, so to speak, which is in effect a brace band and is designated 35.

The outer side face 22 extends right-angularly and rearwardly from the upturned front face of the casing 21, to a certain depth and then is angularly inturned to form anextension 23 which is itself again turned to form an end plate 24.

The inner side plate 25 of the casing is straight throughout its length, being a, planar surface the lower edge of which corresponds in curvature to the curvature of the front face 21 of the casing and is coextensive With the length of said face.

The upper surface or edge of this side plate 25 is, however, formed with a channeled recess 26, best shown in Fig. 5, and with an angular cut-out 27, so to express it, near its rear end,both of these formations 26 and 27 being adapted to fit the casings to the table in its application as an inclosing or guarding member of my device, as will be understood by reference to Fig. 2 in which this casing is shown in full lines as in its closed and fitted position and in dotted lines as in its open position.

34 designates shaft notches in the rear edges of the inner side plate 25 and the end plate 24 of the outer side plate 22, which are formed for the purpose of fitting over the line shaft guard when the casing is locked in closed position by means of a screw eye 32 which enters through an eye plate 31 on the upper edge of the front face of the casing 21, and screws into the under surface of the table.

The hinging of the casing is directly to the lower end of a pair of hangers. 19, by hinges the butts of which, see Fig. 3, are designated 28 and the knuckles 29,the pintles closing the hinge being designated 30 and passing through apertures 45 in the hangers 19.

Referring now to Fig. 6, which illustrates the lid member of my guard considered as an entirety,this lid is composed of a curved underneath surface or face 36 and of two side faces 37 connected to the face 36 by the riveting of an overturned or an overlapped edgeone on each side of said face 36 upon the back edges of the side faces 37.

The front edges of both of the side faces 37 about centrally of their depth are formed with shaft notches 38 which, in the mounting of the lid, match and register with the shaft notches 34 of the side faces of the casing, and, by so matching, complete the inclosure of the line shaft 7.

The hinging of this lid relatively to a pair of the hangers 19 between which it is mounted, is by means of hinges the butts of which are marked 39 and the knuckles 40, and which are connected by the pintle 41 which passes through both of the knuckles and also through two of the holes designated 46 in the bottoms of the hangers 19.

The lid being hinged in position can be lifted up into the closed position shown in full lines in Fig. 2 and secured in such position by a screw eye 43 screwed through the eye plate 42 in the upper edge of the face 36 of the lid. As so mounted, as will be understood from Fig. 2, the lid incloses the inneror open end of the casing 21 and serves completely to confine the pulleys, belts and transmissions of the operating mechanism of the sewing or other machine.

Obviously, as will be understood from Figs. 1 and 2, each casing and its coacting lid serve as complete guards o-r shields for the driving mechanism of the sewing machine, or other driven machine with which they may be employed, and as each guard as a whole is complete with relation to the machinery which it incloses, the two guards shown in the drawings together effect the complete inclosure of the driving mechanisms of the two machines represented, and leave to be protected only the line shaft 7, or that portion thereof which extends between the two driving mechanisms.

That inclosure of said line shaft I effect by the application of a hollow, cylindric guard d7,shown removed in Fig. 7 and in place in Fig. 1,mounted connectedly with the elements of the casingand the lid of each guard for the transmission devices, by mounting or slipping its ends over the annular flanges 20 which extend oppositely from the hangers 19 upon the sides which respectively in the organization shown face inwardly toward the adjacent casings and lids.

Having now described a good form of a convenient embodiment of my invention, it will be understood that the guard considered as an entirety is applicable to supporting tables or frameworks of various kinds for carrying operating machines of other characters than sewing machines, and that by the simple application of the hangers 19 to the under surface of the base of the trough, or, should a trough not be used, to the under surface of the table, the casing, the lid and the shaft guard may readily and collectively be applied.

It will be further understood that if access is desired only to the line shaft and its driving pulleys, the lid alone may be unlatched and swung down, whereas if access is desired to the transmission shaft, the transmission, belts, and driven pulleys, the casing can be unlatched and swung down, or both lid and casing can be swung'together.

When raised and latched these two elements of casing and lid together confine and inclose the entire operating and driving mechanism of the machine, and, being conformed or outlined in the type or embodiment of the organization shown, to the form and dimensions of the table and trough, when elevated afford ample room beneath them and above the fioor upon which the machine stands, with the result that the line shaft can be mounted closely beneath the under surface of the table, and brought nearer to the transmission shaft, so that the belts from the driving pulleys on the line shaft to the driven pulleys on the transmission shafts may be shortened and their cost in consequence reduced.

The entire guard arrangement is, in fact, of such compact character and requiring so little material, that it is very inexpensive and may, if desired, be made still less expensive by the use of hard fibrous material instead of sheet metal as illustrated and described.

It will now be apparent that I have devised a novel and useful guard which em bodies the features of advantage enumerated as desirable and effects the objects which I have in view,and that while I have in the present instance shown and described a preferred embodiment of it, it is to be understood that that embodiment is susceptible of modification invarious particulars without departing from the spirit or scope of my invention or sacrificing any of its advantages.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is 2- 1. In a machine of the class described, the following elements in combination :a supporting table,-a machine mounted thereupon,a driving line shaft beneath said table,a transmission mechanism operatively interposed between said machine and said line shaft so as to connect the machine with the shaft,and a guard for inclosing said transmission mechanism, which consists of a casing hinged beneath the line shaft and adapted beyond its hinged end to be connected with or disconnected from the table, and of a lid similarly hinged beneath the line shaft and similarly adapted beyond its hinged end to be connected with or disconnected from the table.

2. In a machine of the class described, the following elements in combination :a supporting table,a machine mounted thereupon,-a driving line shaft beneath said table,-a transmission mechanism operatively interposed between said machine and said line shaft so as to connect the machine with the shaft, and a guard for inclosing said transmission mechanism, which consists of a casing hinged at its lower end to a pair of hangers depending from the table and through which the line shaft extends, and adapted beyond its hinged end to be connected with or disconnected from the table, and of a lid similarly at its lower end hinged to said hangers and similarly adapted beyond its hinged end to be connected with or disconnected from the table.

3. In a machine of the class described, the

following elements in combination :a supporting table,a machine mounted thereupon,a driving line shaft beneath said table,a transmission mechanism operatively interposed between said machine and said line shaft so as to connect the machine With the shaft,-and a guard for'inclosing said transmission mechanism, which consists of a casing the sides and inner ends of which are conformed to encompass the transmission mechanism and to fit beneath the table, hinged at its lower end to a pair of hangers depending from the table and through which nected with or disconnected from the table.

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this 5th day of November, 1918.

LOUIS STANLEY MIGLIORE.

In the presence of- J.BONSA LL TAYLOR, C. D. MOVAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

